Peer-Reviewed Journal Details
Mandatory Fields
Shahzad, A,Khan, S,Jones, M,Dwyer, RM,O'Halloran, M
2017
August
Biomedical Physics & Engineering Express
Investigation of the effect of dehydration on tissue dielectric properties in ex vivo measurements
Published
WOS: 13 ()
Optional Fields
dielectric spectroscopy electromagnetic interactions biological tissue bioimpedance tissue dehydration MICROWAVE-FREQUENCIES ELECTRICAL-PROPERTIES BREAST TISSUES ANIMAL-TISSUES BRAIN-TISSUE LIVER-TISSUE IN-VIVO 20 GHZ MHZ SYSTEMS
3
045001
This paper discusses the impact of tissue dehydration on the dielectric properties of excised tissue samples. The effect of dehydration on the tissue surface has been characterized as a function of time after excision on freshly excised mouse liver. The dielectric properties of liver were measured over the frequency range of 500 MHz-20 GHz using an open-ended coaxial probe. Tissue samples were obtained from 7 athymic BALB/c Nude mice, and measurements were performed over the first 3.5 h post-excision at the tissue surface and in the middle of the sample (accessed via a small incision). The samples were kept in sealed containers between measurements to avoid excessive dehydration. The measured dielectric data show a change of more than 25% in both the real and imaginary parts of complex permittivity over 3.5 h after excision. Results indicate the impact of tissue dehydration on the dielectric properties, and signify the importance of considering controls in the experimental design of ex vivo dielectric measurements.
10.1088/2057-1976/aa74c4
Grant Details
Publication Themes
Biomedical Science and Engineering